Swing-truck-yoke support for railroad rolling-stock



J W. MARSH.

SWING TRUCK YOKE SUPPORT FOR RAILROAD ROLLING STOCK.

APPUCATION FILED Nov. 7. 1919.

Patented Aug. 23, L921.

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A TTORNEYS W/INESS I J. W. MARSH.

SWING TRUCK YOKE SUPPORT FOR RAlLROAD ROLLING STOCK.

APPLICATION FILED NOV. 1. 1919.

1,388,818, Patented Aug. 23, 1921.

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uvvmron L/UHIY I! MARSH A TTORIIE Y8 J. W. MARSH.

SWING TRUCK YOKE SUPPORT FOR RAILROAD ROLLING STOCK. APPLICATION FILED uov.1. 1919.

1,388,818. I PatentedAug. 23, 1921.

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was w. MARSH, or new YORK, N. Y;

' SWING-TBUGK-YOKE csurron r non AILROA nonnmc sm x T0 allwhoc'a it may concern: I

Be it known that I JOHN V.-MARSH7.3.- subject of George V, King of Great Britam and Ireland, and a resident of the city of New York, borough of Manh yw and State of New York, have inventeda new and Improved Swing-TruckYoke Support for Railroad Rolling-Stock, of which the following is a full, clear, and exactdescripa tion.

This invention relates to trucks for railroad rolling stock, and more particularly to improvements in the axle box construction and supporting means for carrying the upon the weight of the 'car or'locomotive axle box vand car wheels.

An. object of the invention is to provide an-improved base or supporting means for supporting a yoke used in truck construction, and particularly locomotiye trucks. It is a purpose to effectively enable and promote the practice of akindred'invention, as shown in a joint application filed in the United States Patent Office on the 25th day of August, 1919, A. I). under the Serial No. 319,620. I

In the kindred application filed as above stated, the inventors thereof have disclosed a new and improved type Of'litdlfll truck for use in connection with railroad rolling stock, and'particularly for use in connection with large heavy locomotives of long wheelf base. It becoines the partand purpose of 'the presently described inventionto provide a valuable and useful structure preferably employed an element or-sub-combination in constructing a radial truck in accordance with the kindred invention. I

In' presenting this invention Ihave particularly in view the provision of new and improved means for accommodating a swinging yoke employed as an element in the above identified kindred invention and to 0 provide a means by which the swingingly mounted yoke and supporting axle box may undergo I adequate relative movements one with the other in the several directions of motion to which the yoke and axlebox are subject when moving along a'railroad track.

It is a particular object of this invention to provide specially designed axle box to accommodate a slide, and to support a truckyoke upon the sllde to permit the yoke to :undergo the required movements relatlvely V Specification of Letters Patent. Patented A g- 23 1921 Applicationfilied November 7, 1919. v SerialNo; 336,317,

to the'ax le box. In mounting a yoke over an axle box it is necessary to provide for the V sliding twisting, and rocking action which the yoke undergoes relatively to the axle box,

andthis inventionisconceived to accomplish,

modatethe increased side swing. and travel: of the locomotive frame over the truck, it becomes necessary to employ a radial truck which may be. similar to the one disclosed in the kindred application and to provide a yoke mount orsupport, as herein disclosed, to complete the structure of the radial truck, 7

and-render more competent the function of the radial truck.

With the above principal objects in view I an'd'others, the invention has relation to a certain combination-v and arrangement of parts; several designs and modifications thereof being presented in the several appended claims, and one practical working" design of which is described in this specification, and portrayed in the accompanying drawings, whereln: I

. 'Figure 1 shows. a combination side eleva tion and sectional view of the flexible or swingingyoke carried upon an axle box.

Fig. 2 shows an end elevation thereof with the yoke and associate parts in ectiongand with the axle box and truck wheel in elevation. This view shows the yoke hanging in normal position as when the ing on, a stralght track.

Fig. 3 illustrates the same parts as Fig. 2,

truck is travelhowever the position of the yoke is swung over to one side which shows the action as I the truck rounds a curve.

Fig; 4 illustrates a plan view of the'axle box with parts of. the yoke mount or support placed in position within the channeled .ree cess of the axle box.

shown with parts thereof broken away to p The parts confined inf] the channeled recess of the axle box are a certain rocker base employed to support the yoke.

Figs. 5 and: 6 illustrate an'underneath per spective view and a top perspective view of a certain rocker employed in connection wlth the swingingly mounted yoke and axle box; This part is termed the rocker in the inven tion. j I

Fig. 7 presents a perspective view ofthe underneath side of a rocker base which sup ports the above mentioned rocker.

Fig. 8 shows a top perspective view of a slide which is carried by the axle boxand in turn supports the aforesaid rocker base.

Fig. 9 illustrates a top perspective view of a specially designed axle box, disclosing the channeled recess formed thereinto receive box assembly. It is understood however that a completed device would consist of a duplication of. therapparatus shown in the drawings, that is to say, would consist of a yoke mounted over each axle box on the outside of each truck wheel. The yokes would then be oined together by the usual equalizer bars. v Q

In constructing a swing truck yoke sup port for railroad rolling stock in accordance with my invention, it is necessary to provide an axle box having all the characteristics of the well known present type, but specially designed on the upper face thereof to retain a rocker base. And in order to accommodate the sliding and twisting mo tion which the axle box undergoes relatively to the rocker base, itmay be necessary to employ a slide interposed between the rocker base and the axle-box. A spring support is next mounted on the rocker base, said spring support being herein called a rocker. The rocker holds aspring, and a yoke is hung on the spring. The device is then assembled and used in connection with a radial truck to suit the needs of the railroad requirements as set forth in the. above identified kindred invention. r r

In further describing my invention, reference is made to the accompanying drawings wherein the various parts are particularly pointed out by reference characters. A description is first given of theimportant parts of the invention, and their construction.

The support device will then be described in connection with the axle box to complete the accompanying v rocker base.

The slide is rectangular in shape to fit into a channeled guide of an axle box as later seen. The ribs are not essential, but may be used to advantage to obtain a greater bearing area to'transier side thrust of the truck to the axle box. The slide is centrally bored or turned to "form a'soc'ket bearing 12. V

Fig. 7 discloses a rocker base consisting of a flat plate 1 1 with a number of parallel to the corners in plan as shown in Figs. 4

and 7. By referring to Fig. 4,Wlli0l1 isaplan view, it is more clearly seen how the oppo-' sitely straight butrelieved edges 17 permit the slide to undergo a limited twisting motion under the rocker base.

Figs. 5 and 6 of the drawings illustrate a rocker whichis carried by the rocker base 14. This rocker is made with upstanding parallel sides 19 integrally formed with a horizontal base 20, and on each end of the base is integrally formed substantial heavy depending lips 21. Onthe upper face of the base 20 is formed a channel 33 extending down the parallel sides and. across the base. The channel in the base proper is obtained by leaving ribs extending parallel across the base 20. This channel 33 functions as a seat to properly aline and retain the spring and yoke in -positionas later seen. On the underneath side of thebase 20 are formed parallel grooves 0r seats 22 having a surface configuration about equal to the surface configuration of the upstanding ribs 15 of the The rocker is placed in position on the base 1 1 with the ribs 15 fitting into the grooves 22. This disposes the lips 21 over the end edges of the rocker base and holds the rocker and rocker base to-v gether in a joint relationship, but allows the rocker to tilt back and forth over the rocker base restingfirst upon one rib 15 and then the other. By observing F i 1 the lip is shown to overhang the end edge of the rocker base in full lines, and by observing Figs. 2 and 3 the same position is seen in dotted lines. In this manner the base 14 is-confined under the rocker. I

' Reference is now made to the assembly views ofthe-drawing where a truck yoke 27 is employed, and which is built in the form of a channel which spacesapart its vertical walls, and as later seen, the parts associated with the yoke are inserted between the walls of the channel in the upper portion of the yoke. In the central part of the yoke, a portion ofthe web is removed to leave an base.

. opening horizontally formed therethrough to open space intowhich is inserted the rocker 20 and its associated parts. Lips 39 are integrally formed with theweb of the yoke, and terminate the web to leave the afore said opening. The rocker is confined in this opening and the lips 39 contact the rocker to restrain said rocker from longitudinal movement but to permit vertical movement. Above'the opening in the yoke there is another web 40 formed integrally with the wallsof the yoke to truss and strengthen said yoke. The yoke 27 has downwardly diverging arms, and on the lower ends thereof are provided suitable coupling pins for joining it with truck equalizer :bars in case equalizers are employed, or in case'it is directly-connected, to the frame of the,

rolling stock. I

A truck spring 24 is bound with a band 25 to join together the. plurality of plate springs to form a spring assembly. The spring is seated'in the rocker'by disposing the binder band 25 in the spring seat 33 of the rocker, 20. A hanger 26 is suspended on I each end of the spring, and a pin 28 is inserted through the lower end of each hanger and through the walls of the yoke to suspend the yoke 27-on the spring 24;. The spring thereforsupports the truck yoke in a manner as disclosed in the drawings. Adequaterlearance is provided between the yoke and the axle box to allow vertical movement of the yoke-due to its spring suspension. In case the spring should break,

the yoke 27 immediately drops down on the spring with the web'O resting against the spring band 25. In this positionthe truck yoke and associated parts will continue to function even though the spring fails.

The axle box 29 employed in connection with this axle and truck yoke mount may have the same journal and bearing design as is characteristic with present type axle boxes, but the top side thereof is finished to form a horizontal plane slide surface in the form of a guide or channel 30, with adjacent upstanding-parallel ribs 31. The channel or guide 30 slidably supports the slide 10 which is disposed in the channel with the rocker base mounted on and within the slide. Fig. 4 discloses in plan the axle box with the slide, rocker base,and rocker in assembly. A half portion of the rocker is broken away to expose one of theribs of the rocker The axle box is made with. a hollow receive a bar to relationship. Y

In order to lift and transport-the truck to or from the track, a lift bar 38 is inserted through the opening in the axle box and has each end fixed to the yoke. This joins the yokecand axle box together and prevents the yoke from becoming disengaged from the axle box. The li t bar is necesjoin all parts in a transient sarily employed to hold thetruck assembly together when being, lifted from and replaced on railroad tracks bya crane.

.An oil sump 32 may be formed in the axle box, and in the present design it is found convenient to provide this sump within one of'the 'walls or in the rib of the axle box. Any suitablemeans of transmitting oil from the sump, to the bearing faces of the working parts may be employed such as drilling holes to communicate the sump with the working faces of the axle box, slide, and rocker base, and inserting oil wicks or other means there in. r

-The axle box is fixedly mounted on the frame 34 and ournals the truck axle 35 which carries the truck wheel 36. Truck equalizer bars 37 are connected with each yoke arm, and these equalizerbars couple up with the locomotive frame and springs to transmit a portion of the load from the locomotive frame to the truck yokes, through the rocker, rocker base, and slide onto the axle box a'ndthenceto the wheel.

In the operation of this truck yoke support','the yoke 27 hangs vertically while the truck travels on a' straight'track. However, when the truck roundsa curve the frame of the'locomotive draws the equalizers transversely across the track due to the wheels yoke, the axle box 29 undergoes a sliding motion under the slide 10, the associated I rocker base 14 and other parts. The rocker is heldlongitudinally with the yoke 27 and connected locomotive frame by the upturned lips 39 terminating the'upper part of the wall which comprisesthe web of the truck yoke section. The rocker base and slide are held together by engagement of the socket bearing 12 and base 16, while the rocker and rockerbase are held together by the lips 21 of the rocker, as the axle box moves under the slide. Simultaneously with this last described movement there occurs a slight rotaryor twisting motion of the rocker base relatively withthe slide. The twisting motion is due to the radial travel of the axle box and slide which causes the slide to rotate slightly under the rocker base. In this manner the several different relative motions occuring between the yoke and the axle box i are adequately.accommodated by the inter posed slide 10, rocker base 14, and rocker 20.

When'the yoke swings over the axle box and ridesupon one of the ribs 15, there are developed certain forces which. act to draw the locomotiveiframe around the curve. As

long as the yoke hangs in a'vertical position the forces are neutral, but when the yoke ters Patent is:

swings to one side or theother, the eccentricity of the mounting of the single supporting rib acts to forcibly draw the locomotive frame around the'curve and off the tangent which it tends to travel.

The load of the locomotive imposed on each truck wheel 36 is rested upon the ribs 15 which acts to stabilize the locomotive over the truck when traveling on a straight track. This reduces side swing to a minimum and results in asmooth easy riding locomotive free from lateral sway.

The Figs. 12 and 13 disclose another type of slide 50 and rocker base 52. The slide comprises a flat plate with a bearing hole 51 formed through the body thereof to receive the circular base 52. The base 52 projects through the slide 50 and rests directly on the axle box while the slide 50 functions as a guide or retainer to hold the rocker base 52 in position, and further to transmit the side thrust acting through the apparatus to draw the drivers around a curve as more particularly brought out in the kindred ap plication. The base 52 carries the supporting ribs 15 the same as previously described,

The invention is presented to fill the want felt for a truck yoke support to facilitate the construction and use of the radial truck disclosed in the kindred invention in order Having thus described my invention, what I claim as new and desire to secure by Let- 1. A support bed to mount a truck yoke over an axle box, comprising: a pair of relatively movable members interposed between the truck yoke and the axle box to permit the truck yoke to undergo a swingingly transverse motion, and to permit the axle box to travel longitudinally relative to the oke. 3 2. A swing truck yoke support for railroad rolling stock, to mount the yoke over an axle box, comprising in combination: a pair of relatively movable members interposed between the truck yoke and the axle box to permit the truck yoke to undergo a swingingly transverse motion, and to afford said truck yoke a simultaneous longitudinal travel relatively to the axle box.

8. A mounting means to carry a truck yoke over a railroad axle box, comprising: a rocker associated with the yoke, a slide associated with the axle box, and a rocker base interposed between the slide and the rocker.

road rolling stock, in combination with an axle box; an axle box provided with a guideway, device slidably confined in the guideway, a yoke mounted on the device for the purpose of permitting relative motion between the yoke and the axle box.

6. A swing truck box support for railroad rolling stock, in'combination with an axle box, comprising: an axle box having receptive means to support a device, a device adapted to be so supported, ribs formed on the device, and a yoke resting in'contact with theribs," i

7. A-swing truck yoke support for rail road rolling stock, in combination with an axle box, a member carried by the axle box, ribs formed on the member, a yoke carrying a member resting in contact with the ribs to permit a transverse rocking motion of the yoke relatively to the axle box, and means provided to permit the axle box to travel longitudinally relatively to the-yoke;

.8. A swing truck yoke support for railroad rolling stock, in combination with an axle box, a member carried by the'axle box, projections formed on the member, a yoke carrying a member resting in contact with the projections, whereby said yoke is capable of a transverse rocking motion over the axle box, and means for restraining the yoke against longitudinal movement while the axle box undergoes longitudinal motion.

9. A swing truck'yoke support for railroad rolling stock, in combination with an axle box; an axle box provided with a re-' ceptacle, a member confined mum receptaole and held stationary while the axle box moves relatively to the member, a device related with the member insuch a manner as to rock or tilt in one direction but re strained from motion in other directions relative to the member and a yoke carried upon the device.

.10. A swing truck yoke support for railroad rolling stock, in combination with an "axle box; an axle box provided with a guidewith the member in such a manner as to rock or tilt thereon but restrained. from motion relatively right angular to the rocking motion of the device, a yoke carried upon the device, and a spring support interposed between the device and the yoke in order to support the yoke upon the device.

11.. A swing truck yoke support for railroad rolling stock, in combination with an axle box: an axle box provided with a guide way, a member confined in the guideway and held stationary while the axle box moves relatively to the member, a device related with the member in such a manner as to rock or tilt one direction but restrained from a rocker mounted upon the rocker base, and,

a yoke mounted on the'ro'cker.

13. A swing truck yoke support for railroad rolling stock, in combination with an axle box, comprising: a slide carried oncan axle box, a rocker associated with the slide to tilt back and forth thereupon but restrained from motion right angular to the tilting motion, and a yoke carried bythe rocker; i

14. A swing truckyoke support for railroad rolling stock, in combination with an axle box, comprising: a slide carried by an axle box, a rocker associated with the slide to tilt back and forth thereupon but restrained from amotion transverse to the tilting motion, a yoke carried on the rocker, and a spring suspension means interposed between the rocker andthe yoke toresiliently" support the yoke the axle box.

15.- A swing truck yoke support for railroad rolling stock, in combination with'an axle box, comprising: a slide, a rocker base mounted'on the slide and capable of motion relative thereto, a rocker mounted on the rocker base and capable of motion relatively to the rocker base, and a yoke carried upon the rocker. V V

16. A swing truck yoke support in combination with a railroad axle box, comprising: a slide carried on a railroad axle box, a rocker base associated with the slide, a rocker associated with the two aforesaid elements, a spring mounted on the rocker, and a yoke upon the rocker and over supported by the spring. 9 1 A swing truck yoke support, in com-.

bination with a'railroad axle box, compris ing: a slide carried on a railroad axle box, a rocker base associated with the slide, a rocker associated with the two aforesaid elements, a spring mounted onthe rocker, a yoke supported by the spring, and means provided for holding the aforesaid parts together when the truck is lifted from the track.

18. A swing truck yoke support, in com bination with a railroad axle box, comprising: a slidejcarried on arailroad axle box, a rocker base associated with the slide, a rocker associated with the two aforesaid elements, a spring mounted'on the rocker, a yoke supported by the spring, and a. lift bar fixed to the yoke and associated with the .axle box to hold the axle box and yoke together when the truck is lifted from a track.

19. A swing truck yoke support, in combination with an axle'box, comprising: a slide carried upon an axle box, upstanding projections integral with the slide, a rocker member tiltingly supported on the projec trons, a spring supported upon the rocker member, and a truck yoke suspended on the spring.

20. A swing truck yoke support forrailroad rolling stock, in combination-with an axle box, comprising: a slide carried upon an axle box, a rocker associated with the slide, means interposed between the rocker and the slide to permit the rocker to undergo 1 a tilting motion relatively to the slide, and means provided to restrain the slide and rocker from relative motion in a direction approximately right-angular to the tilting plane of the rocker.

21. A swing truck yoke construction for use in combination with a railroad axle box; a yoke cast in channel form with a web and upstanding spaced parallel walls, ears terminating the web to leave an opening, and

means inserted in the opening of the web to 1 swlngingly support the yoke over an axle box. 7 r I V 22.; A truck yoke construction for use in combination with a railroadaxlebox; a yoke cast in channel form with a web and up- 7 standing spaced parallel walls, ears terminating the web to leave an opening, and means inserted in the opening of the webv to,

support the yoke over an axle box.

28 A truck yoke construction for use in; combination with a railroad axle box; a yoke cast in channel form with a web and upstanding spaced parallel walls, ears ter minating the web to'leave an opening, means inserted in the opening of the web to support the. yoke over an axle box,"and means for permitting the axle box to move relatively to the yoke. I

24. A swing truck yoke construction for use in combination with a railroad axle box;

a yoke cast in channel form with a web and walls, said web having, an opening formed therein centrally to the voke, a web integrally-formed with the walls of the yoke above the opening, a spring inserted 'between the walls of the yoke and above the opening, means for connecting the spring and the yoke, a device to support the spring,

"said device ertically movably mounted in the opening of the yoke, and a base upon which is carried the device with its related spring and yoke.

- 25. A swnig truck yoke construction in combination with an axle box; a hollow yoke with an opening formed therein, a

rocker mounted in the opening of the yoke, L

a spring carried upon the rocker and acting to support the hollow yoke, and a web forming an integral part of the hollow yoke disposed above thespring to catch the yoke in case the spring breaks and releases its supporting hold on said yoke.

26. A base or supporting means for carrying a swing yoke on a vehicle carriage, comprising: a slide' provided with a socket bearing, a rocker base, a boss formed on the rocker base to fit into the socket bearing of the slide, projections formed on the rocker base, and a rocker mounted upon the projections of the rocker base.

27. 'A base or supporting'means for carrying a swing yoke on a vehicle carriage, comprising: a slide provided with a socket bearing, a rocker base, a boss formed on the rocker base to fit into the socket bearing of the slide, ribs formed on the rocker base, and a rocker mounted upon the ribs of the rocker base. 1 i

28. A base or supporting means for carrying a swing yoke on a vehicle carriage, comprising: a slide having a socket bearing, upstanding ribs integrally made with the slide, a rocker base having arcuate edges'and carried on the slide, a bearing boss integrally formed with the rocker base and fitting into the socket bearing of the slide in such a manner as to place the upstanding ribs of the slide tangent to the arcuate edges of the rocker base, ribs formed on the rocker base, and a rocker mounted on the ribs of the rocker base.

29. A base or supporting means for carrying a swing yoke on a vehicle carriage, comprising: a slide having a socket bearing, a

rocker base, a boss integral with the rocker base and fitting into the socket bearing of the slide, ribs formed on the rocker base, and a rocker provided with grooves or seats hav-, mg a surface configuratlon about equal to the surface configuration of the ribs of the rocker base in order that the rocker may tilt upon the ribs of the rocker base. I

30. A base or supporting means for carrying a swing yoke on a vehicle carriage,'com'- prising: a. slide having a socket bearing, a rocker base, a boss integral with the rocker base and fitting into the socket bearing of the slide, ribs formed on the rocker base, and a rocker provided with grooves or seats having a surface configuration about equal to the surface configuration of the ribs of the rocker base in order that the rocker may tilt upon the ribs of the rocker base, and lips formed on the rocker depending over the edge of the rocker base to hold the rocker nd rocker base in related position. 7

31. A base or supporting means for carrying a swing yoke on a vehicle carriage comprising: a slide having a'socket bearing, a base, a. bearing boss integral with the base and fitting in the socket bearing, a rocker,

and ribs or projections formed on either the rocker or the base and interposed between the base and the rocker to permit the rocker to undergo a tilting motion transversely of go a tilting motion transversely of the base,

and lips depending from the rocker overhanging the base to lock the rocker and base in relatedposition.

33. A'base or supporting means for carrying a swing yoke on a vehicle carriage comprising: a slide, a rocker-basemeans interposed between'the'slide and rocker base to join them togetherpermitting relative concentric movement by restraining them against longitudinal movement, a rocker mounted upon the base, means interposed between the rocker and the base to permit a relative tilting motion between the rocker and said base but to restrain the rocker and the base from relative longitudinal movement. l

3a.. Abase or supportlng means for carry.

ing a swing truck yoke used in connection with railroad rolling stock, comprising: an axlebox provided with a slide surface, a rocker base supported on the slide surface, and a rocker mounted on the rocker base.

35. A base 01' supporting means for carrying a swing, truck yoke used in connection with railroad rolling stock, comprising: an axle box provided with a'slide surface, a rocker base supported on the slide surface, a rocker mounted on the rocker base, and ribs interposed between the rocker and the rocker base. f V i 36. A base or supporting means for carrying a swing truck yoke used in connection ingly carried upon the rocker base.

37. A base or supporting means for carrying a swing truck yoke used in connection with railroad'rolling stock, comprising: an

axle box having upstanding ribs to form a slide surface, a rocker'base mounted on the axle box and on the slide surface, a slide associated with the axle box and the rocker base to hold the rocker base in proper relation with the axle box, .a rocker swingingly carried upon the rocker base, and ribs or projections interposed between the rocker tion with the axlebox, and a rocker swing and the rocker basefor the purpose offacilitating the swinging movement of the rocker.

38. ,A base or supporting means for carryinga swing truck yoke used in connection grally formed with the rocker base, a slide having a hole bored therein fitting around the boss of the rocker base,'and a rocker mounted upon therockerbase.

39. A base or supporting means for carry-' ing a swing truck yOkB OVGIFMI axle box, comprising: a rocker base adapted to fit into arecess formed inan axle box and rest'upon said axle box, upstanding ribs or projections integral with the rocker base,'and a rocker carried by the yoke and swing-ingly carried upon the rocker base. V 40. A base or supporting means for carrying a 7 swing truck yoke over an axle box, comprising :a rocker base resting in position upon an axle box, a slide associated with the rocker base and axle box to, maintain the rocker base in correctpositionupon the axle box, and a rockenmounted on the rocker base. W H

41. A base or supporting means for carrying a swing truck yoke used in connection with railroad rolling stock, comprising: an axle box provided with a slide surface, a rocker base supported on the slide surface, a rocker mounted on the rocker, base, a spring supported on the rocker, and a truck yoke hung upon the spring to swing over the axle box.

42. A base or supporting means for carrying a swing truck yoke used in connection with railroad rolling stock, comprising: an axle box provided with a slide surface, a rocker base supported on the slide surface, a rocker mounted on the rocker base, ribs on the rocker or the rocker base between the rocker and the rocker base, a spring supported on the rocker, and a truck yoke hung upon the spring to swing over the axle box upon the ribs.

43. A base or supporting means for carrying a swing truck yoke used in connection with railroad rolling stock, comprising: an axle box having upstanding ribs to form a slide surface, a rocker base mounted on the axle box and on the slide surface, a slide associated withthe axle box and the rocker base to hold the rocker base in proper rela tion with the axle box, a rocker swingingly carried upon the rocker base, a spring supported on the rocker, and a truck yoke hung upon the spring to swing over the axle box.

44. A base or supporting means for carrying a swing truck yoke used in connection with railroad rolling stock, comprising: an axle box having upstanding ribs to form a slide-surface, a rocker base mounted on the axle boxand on the slide surface, a slide associated with the axle box and the rocker base to hold therocker base in proper relation with the axle box, a rocker swingingly carried upon the rocker base, ribs or projections interposed between the rocker and the rocker base for the purpose of facilitating the swinglng movement of the rocker, a spring supported on the rocker, and a truck yoke hung upon the spring to swing over the axle box.

45. A base or supporting means for carrying a swing truck yoke used in connection with railroad rolling stock, comprising: an.

axle box specially designed toform a slide surface thereon, a rocker base mounted on the slide surface of. theaxle box, a boss integrally 'formedwiththe rocker base, a slide having a hole bored therein fitting around the boss of the rocker base, a rocker mounted upon the rocker base, a spring supported on the rocker, and a truck yoke hung upon the spring to swing over the axle box.

46. A base or supporting means for carrying a swing truck yoke over an axle box,- comprising; a rocker base adapted to fit into a recess formed inan axle box and rest upon said axle box, upstanding ribs or projections integral with the rocker base, a-rocker swing-' ingly carried upon the rocker base, a spring supported on the rocker, and a truck yoke hung upon the spring to swing over the axle box.

47. A base or supporting means for carrying a swing truck yoke over an axle box, comprising: a rocker base resting in position upon'an axle box, a slide associated with the rocker base andaxle box to maintain the rocker base in correct position upon the axle box, a rocker mounted on the rocker base, a spring supported on the rocker, and

.a truck yoke hung upon the spring to swing over'the axle box.

48. A yoke in combination with an axle box: a yoke member cast hollow and mounted over an axle box, a spring inserted within the hollow yoke and resting on the axle box, and a web forming an integral part of the yoke over the spring to support the yoke upon the spring in case the spring fails.

49. Improvements in axle box construction and supporting devices for railroad trucks, comprising an axle box to receive and journal the truck wheel and axle set, a yoke disposed over the axle box, ribs interposed between the yoke and axlebox, and said devices provided with grooves in Whichthe ribs rest.

50. In combination with an axle box, of

a yoke mounted thereon, of means for allowthereupon, and a device inserted through the recess in the axle box to prevent separation of the suitable supporting means from the axle box when being lifted from the track.

53. A base or supporting means for carrying a swing yoke on an axle box comprising, a rocker provided with projections formed thereon, a rocker base provided with grooves or seats to receive the projections of the rocker to allow the rocker'to tilt on'the projections, and means provided to permit the rocker and the rocker base to slide and twist relative to the axle box upon which they are mounted.

54. A base or supporting means formounting a spring over an axle box'comprising, a rocker, a spring mounted on the rocker, a rocker base arranged to support the rocker,

and projections interposed between the rocker and the rocker base to permit the rocker and spring to tilt upon the rocker base.

55. An appliance for railroad rolling stock posed between the yoke and the axle box to permit adequatelateral and longitudinal motion between the" axle box'and the yoke,

said axle box provided with a reservoir to contain lubricant, and means related with the axle box for lubricating the parts.

' 56. An appliance for railroad rolling stock comprising in combination, an axle box having a recess formed therein, supporting means mounted on the axle box forreceiving a load imposed thereupon, and a bar extending through the recess formed in the axle box to prevent separation of the supporting means from the axle'box and having its ends secured to the supporting means when being lifted from the track.

57 An appliance for railroad rolling, stock comprising in combination, an axle box, a rocker base carried on the axle box and adapted to undergo relative motion thereto, a rocker mounted upon the rocker base and adapted to undergo a tilting motion thereupon, the said rocker base and rocker being provided with ribs and grooves arranged to register one in the other to permit the aforesaid tilting motion, and supporting means carried by the rocker to receive the load imposed onjthe axle box.

J OHN W. MARSH, 

